Gallienus AE Quinarius. Sole reign, Rome, AD 253-268. 16mm, 1.46 g. 

GALLIENVS AVG, laureate head right.
SECVRIT PERPET, Securitas standing left, legs crossed, holding sceptre and leaning on column.  

RIC 372; MIR 591ff; King 14.
Extremely rare

With permission of cngcoins.com, 442, Lot 221, April 2019.